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Upgrading sensors on CDH

Warning

Only activate the sensors when there are no Hive or Spark jobs running as the restart may affect running jobs.

  1. In Cloudera Manager, check for newer versions of UNRAVEL_SENSOR.

    1. In Cloudera Manager, click the parcel icon in the top menu bar.

    2. Click Check for New Parcels and look for UNRAVEL_SENSOR entries.

      If newer sensors are available, Cloudera Manager indicates this.

  2. Click Download | Distribute, and activate the newer version of the sensors.

    upgrade-server-cancel.png

    When activating the new sensors, Cloudera Manager notifies you that Hive and Spark services must be restarted.

  3. Click OK.

    upgrade-server-activate.png

    When activation is complete, Cloudera Manager automatically disables the old version.

    upgrade-server-deactivate.png

  4. Deploy the new sensor JARs.

Important

In case of a multi-cluster deployment, it is mandatory to Upgrade the sensors on the core node.

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